JSONWS does not support Enum parameters in remote services

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.1.10 DXP FP3, 7.1.1 CE GA2, 7.1.10.1 SP1, 7.1.X, Master
• Component/s: Core Infrastructure > Service Builder, Web Services > JSON WS
• Labels:
  • liferay-dxp-71-sp1
  • liferay-fixpack-dxp-3-7110
• Branch Version/s:
  7.1.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/63572

It is not possible to invoke a remote service which includes Enum parameters in their signature.

Steps to reproduce:

• Open the class BlogsEntryServiceImpl
• Add a new method `dummy` with one parameter of type `com.liferay.portal.kernel.transaction.Isolation`.
• Regenerate the service with `gradle buildService`
• Deploy both `blogs-api` and `blogs-service`
• Go to `http://localhost:8080/api/jsonws` and look for the new method
• Fill in the parameter with one of the enum values (e.g. `COUNTER`).

Expected: The method is resolved and invoked.
Actual: An errors is displayed in the logs and the method is not invoked.